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You searched for: (collection:us_patents OR mediatype:us_patents) AND -mediatype:collection AND firstCreator:H
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[texts]US Patent 2599483: Washing machine - H J Rand Washing Machine Corp

Downloads: 127
[texts]US Patent 2600081: Clock - Haddon Products Inc

Downloads: 198
[texts]US Patent 2599447: Hairpin - Halgar Inc

Downloads: 103
[texts]US Patent 2600580: Electrophotographic apparatus - Haloid Co

Downloads: 121
[texts]US Patent 2600498: Device for gauging recess diameters - Hamerly

Downloads: 125
[texts]US Patent 2600033: Toy wheel and method of making - Hamlin Metal Products Company

Downloads: 137
[texts]US Patent 2601264: Time control system and apparatus - Hankscraft Company

Downloads: 131
[texts]US Patent 2600595: Heat exchanger - Hanlon & Wilson Co

Downloads: 248 5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars(1 review)
[texts]US Patent 2601704: Screen cleaning apparatus - Hardwicke Etter Co

Downloads: 93
[texts]US Patent 2601562: Priming apparatus for internalcombustion engines - Harnischfeger Corp

Downloads: 106
[texts]US Patent 2600506: Metallic insert for pneumatic tires - Harold E Kimes Corp

Downloads: 88
[texts]US Patent 2599193: Hand scraping tool - Harold E Stonebraker

Downloads: 321
[texts]US Patent 2601456: Forming means for profile grinding wheels - Harold Stuart Hallewell

Downloads: 231
[texts]US Patent 2599590: Process for rendering proteinaceous textile materials water repellent - Harris Res Lab

Downloads: 158
[texts]US Patent 2600356: Sheet feeder - Harris Seybold Co

Downloads: 105
[texts]US Patent 2599591: Cutting machine - Harris Seybold Potter Co

Downloads: 195
[texts]US Patent 2599290: Stacking device - Harry D Culver;

Downloads: 84
[texts]US Patent 2600288: Frequency stabilizing apparatus - Hartford Nat Bank & Trust Co

Downloads: 119
[texts]US Patent 2601473: Supervisory device both for comparatively small and comparatively large voltage variations - Hartford Nat Bank & Trust Co

Downloads: 102
[texts]US Patent 2600226: Device to minimize interference between dial impulses in a carrier system - Hartford Nat Bank & Trust Co

Downloads: 141
[texts]US Patent 2600491: Electron discharge tube apparatus - Hartford Nat Bank & Trust Co

Downloads: 140
[texts]US Patent 2601436: Frequency control apparatus - Hartford Nat Bank & Trust Co

Downloads: 77
[texts]US Patent 2600249: Rectifying installation - Hartford Nat Bank & Trust Co

Downloads: 99
[texts]US Patent 2601955: Automatic photographic and sound record apparatus - Hartford Nat Bank & Trust Co

Downloads: 112
[texts]US Patent 2601427: Wave length modulator - Hartford Nat Bank & Trust Co

Downloads: 146
[texts]US Patent 2601987: Phonograph tone arm positioner - Hartford Nat Bank & Trust Co

Downloads: 183
[texts]US Patent 2601429: Fuse system - Hartford Nat Bank & Trust Co

Downloads: 100
[texts]US Patent 2600567: Electrical conductors and method of making the same - Hartford Nat Bank & Trust Co

Downloads: 119
[texts]US Patent 2601472: Superheterodyne radio-receiving set - Hartford Nat Bank & Trust Co

Downloads: 215
[texts]US Patent 2601416: Tube generator - Hartford Nat Bank & Trust Co

Downloads: 103
[texts]US Patent 2600867: Method of separating shells and meat of shellfish - Hartford Nat Bank & Trust Co

Downloads: 140
[texts]US Patent 2600142: Electron-discharge tube - Hartford Nat Bank & Trust Co

Downloads: 101
[texts]US Patent 2601474: Bridge-type transducer circuit with oscillator - Hartford Nat Bank & Trust Co

Downloads: 244
[texts]US Patent 2601719: Dry-shaving apparatus - Hartford Nat Bank & Trust Co

Downloads: 141
[texts]US Patent 2600764: Hydrogenated products - Harvel Res Corp

Downloads: 145
[texts]US Patent 2600403: Partially hydrogenated furfuraldehyde-ketone reaction products thickened under acidic conditions - Harvel Res Corp

Downloads: 236
[texts]US Patent 2601503: Elevator guide shoe mounting means - Haughton Elevator Company

Downloads: 238
[texts]US Patent 2601607: Propellant injection system for rocket motors - Havilland Engine Co Ltd

Downloads: 243
[texts]US Patent 2600534: Method of making coiled wire for use in antiskid pneumatic tire treads - Hawkinson Paul E Co

Downloads: 132
[texts]US Patent 2601146: Means for reducing heat transfer along shafts - Hayward Tyler & Co Ltd

Downloads: 124
[texts]US Patent 2600946: Mounting and demounting of pulleys, gears, wheels, and like elements - Heald Machine Co

Downloads: 180
[texts]US Patent 2600632: Variable capacity vane-type rotary pump including automatic means for maintaining uniform delivery - Heil Co

Downloads: 150
[texts]US Patent 2600633: Constant volume variable speed driven vane pump - Heil Co

Downloads: 183
[texts]US Patent 2599608: Guide bar for chain saws - Henry Disston And Sons Inc

Downloads: 95
[texts]US Patent 2601591: Soil penetrating roller - Herbert F Erickson

Downloads: 89
[texts]US Patent 2600206: Automatic shakeout device for tight flask molds - Herbert Simpson Corp

Downloads: 214
[texts]US Patent 2601561: Synthetic drying oils from polyvinyl alcohol and method of production - Hercules Powder Co Ltd

Downloads: 226
[texts]US Patent 2601801: Tuning fork with simultaneous multiple frequencies - Herrburger Soc Ets

Downloads: 202
[texts]US Patent 2600441: Method of manual door operation of vertically movable doors - Hevi Duty Electric Company

Downloads: 126
[texts]US Patent 2602150: High-speed brightness switching for static type constant current regulators - Hevi Duty Electric Company

Downloads: 114
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